Training

When replacing the Doctor blade on an Inline Type flexo printer, the process differs from that of a stack type. The inline type flexo printing machine arranges the printing units in parallel, with ink flow typically running in parallel as well. Key steps to follow include:

1. Stopping the Machine and Disconnecting Power: Ensure the flexo press is fully stopped and disconnected to avoid accidents during the replacement.

2. Cleaning the Machine: Thoroughly clean the anilox roller, printing rollers, and surrounding areas to remove ink residue and dirt before replacing the doctor blade.

3. Checking the Doctor Blade for Damage: Inspect the old doctor blade for scratches or wear. If it is damaged, replace it to maintain print quality.

4. Disassembling the Old Doctor Blade: Remove the old blade carefully, taking note of the fixing device to prevent damage to other parts. Be cautious of sharp edges to avoid cuts.

5. Selecting the Right Doctor Blade: Choose a blade that matches the machine’s specifications. Inline type flexo presses typically require a longer blade, so ensure it suits the roller size.

6. Installing the new doctor blade: Install the new blade gently, ensuring it makes smooth contact with the anilox rollers and is properly aligned to avoid misalignment and uneven pressure.

7. Adjusting pressure and clearance: Precisely adjust the gap between the doctor blade and the anilox rollers to ensure even ink scraping. Follow the machine’s instructions for proper pressure settings.

8. Safe Operation: Use gloves for protection, avoid excessive force, and ensure tools are properly prepared to avoid equipment damage.

9. Testing and commissioning: After installation, run a test to check the print quality and ensure there are no issues like ink leakage or uneven scraping.

10. Regular inspections: Regularly check the doctor blade for wear and tear to maintain print quality and machine performance over time.

In summary, replacing the doctor blade on an inline type flexo press requires careful attention to pressure, gap adjustment, and proper installation to ensure smooth, consistent printing and machine safety.